2006-11-20 07:25:50 · 3 answers · asked by sicofitall325 1 in Science & Mathematics ➔ Astronomy & Space
They can fall anywhere on the H-R diagram. The age and the temperature of the star are located on the axes, but the distance of the star isn't mentioned.
Also, say the ratio of stars visible to the naked eye and stars visible with a telescope is f/g (g obviously being bigger). This ratio is differenciated by brightness*nearness, where brightness*nearness has to be greater than a certain number to be visible by the naked eye. Since most stars are main sequence stars, the graph of stars can look like this:
....*..............*............*.M
................*........*.*M..*..
......*............*..M..*....*...
..*............*M..*.......*......
........*..M.*..*.........*.......
.*..*M.*....*.....*...........*..
As you can see, most stars are on the diagonal that cuts from the bottom left to the top right M's. If you randomly take away a number of stars, then the diagonal will most likely be there. Thus, most visible stars are near the graph of (f*brightness/g*nearness) which is the diagonal.
2006-11-20 08:59:10 · answer #1 · answered by merviedz trespassers 3 · 0⤊ 0⤋
In general it is in the Class I, II and III of almost any Spectral Type, but of the Class V it is primarily the O, B and A.
2006-11-20 07:55:14 · answer #2 · answered by sparc77 7 · 0⤊ 0⤋
about 100'000 years of the light
2006-11-20 07:42:21 · answer #3 · answered by yuri Romanov 2 · 0⤊ 1⤋